500MM X 200MM Standard Pole Permanenet Magnetic Chuck ~ Can be used for processing various magnetic conducting work pieces. ~ For surface grinders, tool grinders, EDM and other applications. ~ Chucks are sealed and lubricated to be maintenance free. ~ Magnetic force on/off switch. ~ Ceramic dense magnets for superior holding power. ~ Removable handle. ~ Power pull is 100N. ~ Weight is 92 lbs.